.include "tn15def.inc"
.def temp=r16
.def pwm=r17
.cseg
.org $0000
;---------------------------------------------------------------
start:
			ldi 	temp,0x40
			ldi	pwm,0x00
			out	TCCR1,temp
			ldi	temp,0x02
			out	OCR1A,temp
;---------------------------------------------------------------
INITPORTB:
			ser	Temp
			out	DDRB,Temp
			clr	temp
			out	PORTB,temp
;---------------------------------------------------------------
UP:
			inc 	pwm
			out 	OCR1A,pwm
			rcall	delay
			cpi 	pwm,255
			breq 	down
			rjmp 	up
;---------------------------------------------------------------
DOWN:
			dec	pwm
			out 	OCR1A,pwm
			rcall 	delay
			cpi 	pwm,0
			breq 	up
			rjmp 	down
;---------------------------------------------------------------
DELAY:
			ldi  	r18, $43
LOOP0:			ldi  	r19, $C6
LOOP1:			dec  	r19
			brne 	LOOP1
			dec  	r18
			brne 	LOOP0
			nop
			ret
;---------------------------------------------------------------